3937018 has 8 divisors (see below), whose sum is σ = 5921460. Its totient is φ = 1963200.

The previous prime is 3936997. The next prime is 3937019. The reversal of 3937018 is 8107393.

It can be written as a sum of positive squares in 2 ways, for example, as 2331729 + 1605289 = 1527^2 + 1267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3937018² = 31000221464648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3937019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653 + ... + 3256.

Almost surely, 2^3937018 is an apocalyptic number.

3937018 is a deficient number, since it is larger than the sum of its proper divisors (1984442).

3937018 is a wasteful number, since it uses less digits than its factorization.

3937018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3937018 is about 1984.1920269974. The cubic root of 3937018 is about 157.9025463233.

The spelling of 3937018 in words is "three million, nine hundred thirty-seven thousand, eighteen".